| Line 287: |
Line 287: |
| | | | |
| | The variation between the species is significant and is dealt with [[Species differances in Laryngeal Structure|here]] | | The variation between the species is significant and is dealt with [[Species differances in Laryngeal Structure|here]] |
| − |
| |
| − | ===Equine===
| |
| − | *Fusion of the two plates of the thyroid cartilage is incomplete forming a rostral pointing notch which is a good site for surgical entry into the larynx
| |
| − |
| |
| − | *Thyroarytenoid muscle is divided into 2 parts- rostral and caudal vocalis which are situated within the vocal folds and vestibular folds
| |
| − |
| |
| − | *Cuneiform processes attached to [[Epiglottis|epiglottis]]
| |
| − |
| |
| − | *Prominance (surgical landmark) rostral to opening in thyroid cartilage
| |
| − |
| |
| − | ===Canine===
| |
| − | *Thyroarytenoid muscle is divided into 2 parts- rostral and caudal vocalis which are situated within the vocal folds and vestibular folds
| |
| − |
| |
| − | *Laryngeal ventricles present
| |
| − |
| |
| − | ===Feline===
| |
| − | *Thick vocal folds
| |
| − |
| |
| − | *Purring due to vibration of vocal folds (and of the diaphragm) by rapid twitching of laryngeal muscles
| |
| − |
| |
| − | *Very sensitive mucosa making intubation tricky
| |
| − |
| |
| − | ===Ruminants===
| |
| − | *Thyroid cartilage completely ventral
| |
| − |
| |
| − | *Small median ventricle is present in sheep and goats
| |
| − |
| |
| − | *Narrow glottic cleft making intubation difficult
| |
| − |
| |
| − | *Close to the median retropharyngeal lymph node so enlargement of the lymph nodes may compress the larynx as well as the [[Pharynx - Anatomy & Physiology|pharynx]]
| |
| − |
| |
| − | ===Porcine===
| |
| − | *Small laryngeal ventricle present
| |
| − |
| |
| − | *Double corniculate process in arytenoid cartilages
| |
| − |
| |
| − | *Stimulation of laryngeal mucosa can results in violent laryngeal spasm
| |
| − |
| |
| − | ===Avian===
| |
| − |
| |
| − | *No vocal folds
| |
| − |
| |
| − | *Sound in the bird is produced in the [[Syrinx - Anatomy & Physiology|syrinx]]
| |
| − |
| |
| − | *Larynx on [[Hyoid Apparatus - Anatomy & Physiology|hyoid apparatus]]
| |
| − |
| |
| − | *Paired arytenoids, one constrictor and one dilator muscle only
| |
| − |
| |
| − | *No [[Epiglottis|epiglottis]]
| |
| | | | |
| | ==Links== | | ==Links== |